User blog comment:Trevastyah/Mistakes done by beginners in competative./@comment-31487431-20170412061913

One mistake i see players do is for example: U have a Typlosion (a fire type pokemon) and u have only fire type moves on it. That's dumb. You should use one or two fire tire type moves, and the rest for coverage.

I also think that if u even want a chance in Battle colloseum, you WILL have to EV train (Or maybe even IV breed, but that takes days). It is a sad thruth, but it's reality. I already scrapped A TON of ralts eggs just because they didnt have the correct IVs.